Hose clamp



June 25, 1946. Q A TlNNERMAN 2,402,710

HOSE CLAMP Filed May 24,1944

IN VEN TOR. 560mb A. 7A//vf-/PMA/v BY M, Yban Patented' June 25, 1946 nosa ccm George A. 'l-innermam Cleveland, Ohio, assigner to Tinnerman Products, Inc., Cleveland, Ohio, a corporation oi Ohio Application May 24, 1944, Serial No. 537,023

(Cl. 2li-19) 1 claim. l

This invention relates to hose clamps and more particularly to that type o! clamp having a metallic band that is adapted to be wrapped around the ,hose with the inneaend of the band in sliding contact with the inner surface of the rest of the band. A

One of the difficulties in obtaining a band having the aforesaid characteristics is the attainment of sufilcient Vstrength to resist the strain imposed upon it by the tightening member, and at the same time to secure a device that; can be economically manufactured from sheet metal in strip i'orm, and that will operate satisfactorily to eiIect a clamping action on a wide range of hose sizes.

An object of the present invention-is to provide a hose clamp which can be made substantially entirely of sheet metal stock in strip form, and which will operate satisfactorily to withstand the strain incident to the tightening of a threaded member that is used for drawing the clamp about the hose, and still have suilicient relative movement between the ends thereof to permit use on a wide range ofhose sizes.

In the drawing, Fig. 1 is a perspective view oi a hose clamp embodying the present invention, and Fig. 2 is a section taken through the clamp ona plane indicated by the line 2--2 in F18. 1.

The clamp embodying the present invention has a body Il which comprises a strip of sheet metal bent into cylindrical form with one end Il overlapping the other. The end Il is extended upwardlyto provide an ear i2 which has an aperture Il therein for receiving the shank of a bolt Il. In alignment with the aperture, I have shownthreadmeansintheformota nut il thathas its opening in registration with the opening Il and that is securely fastened, as bywelding,totheear ilontheend |I,asindi cated at I8, Fig. '2.

For the purpose of drawingthe ends of the band together, I have shown a bolt abutment in the formo! a substantially triangular shaped bracket 2| having an extreme straight leg 2l, a curvedintermediate leg 2i, and an extreme connectingleg 22. The legs 2l and 22 extendsubmuanwtangenunwtnecurvminotthsbody.'

whiletheleglliscurvcdsoastobecomdc- 2 rigidly fastened, as by welding, thereto, as indicated at 29, Fig. 1. The leg 2li has an extension 25 projecting in the same plane thereof, while the leg 22 has an extension 26 projecting laterally thereof and in contiguous engagement with the extension 25. The extensions are rigidly connected together, as by Welding (30, Fig. 1), and

are provided with bolt receiving openings 21 and 28, which are in axial alignment with the opening in the nut I5. Thus, the clamp may be tightened whenever the bolt is turned in cooperating relation with the nut.

A hose clamp embodying the present invention may be economically made, because the principal parts comprise sheet metal stampings which may be conveniently welded together, and which may be quickly brought into clamping relationship around'an encircled hose. The overlapping relationship of the ends of the strip which comprises the body of the clamp aiIords a wide range of hose sizes upon which the clamp may be used in a successful manner.

I claim:

A hose clamp having a body comprising a. strip of metal bent into substantially cylindrical form with one end portion overlapping the other end portion, the outer end portion being adapted to of the bracket which lies adjacent the said tangential extension of the body having its end portion bent up substantially at right angles, the other extreme leg of the bracket extending across and contacting with such bent up portion and being welded thereto, such welded extension and extreme leg having a bolt opening adapted to alim with the bolt opening .ofthe body, and a threadedboltextendingthroughallotsaidopeningsandoccupyingsaidthreadengager, 

